M322834 八、新型說明： 【新型所屬之技術領域】 本創作係與運動器材有關，特別是指一種高強度且低 風阻之球拍。 5【先前技術】 -般球拍如羽球拍、網球拍或壁球拍係包含有一頭 框、連接部由該頭框延伸而出，以及—握把設於該連接 部之自由端，其中，該頭框之橫剖面略呈矩形，具有不小 的風阻，如何降低揮拍時之空氣阻力，已成為業界研發的 重點；另外，頭框不僅需承受網線張力，更是最容易遭受 外力之處’使頭框成為最容易發生結構破壞之部份，因此， 如何加強頭框之結翻度，亦為#界亟欲解決之問題。 【新型内容】 15 ^創作之-目的在於提供—種球拍，兼具高結構強度 且低空氣阻力。 拍 本創作之另-目的在於提供一種高強度且低風阻之球 具有極佳之操控性。 20拍 ^作之又-目的在於提供一種高強度且低風阻之球 有較長之使用壽命。 抽在t讀揭目的，本顺所提供高強度且低風阻之球 才糸w有-賴’—連接部由該頭框延伸而出，以及一 握柄设於該連接部之自由端，盆 一 街崎，、甲，邊頭框具有一内周面、 "’以及二環周面位於該内周面及該外周面之間， M322834 面處具有多數凹陷，使該内周面之 該等環周面鄰近該内周 邊緣形成波浪狀。 【實施方式】 兹舉以下六較佳實施 為了更瞭解本創作之特點所在 例並配合圖式說明如下，其中： 圖係本創作第—較佳實關之立體圖； 第二圖係本創作第—較佳實施例之局部側視圖； 第三圖係第二圖沿3_3方向之剖視圖； 第四圖係第二圖沿4_4方向之剖視圖； ，五圖係本創作第二較佳實施例之局部側視圖 第六圖係本創作第三較佳實闕之局部侧視圖 ，七圖係本創作第四較佳實施例之局部立體圖 第八圖係本創作第五較佳實施例之立體圖； 10 15 第九圖係本創作第六較佳實施例之立體圖。 請參閱第-圖，本創作第一較佳實施例所提供之高強 度且低風阻之球拍1G係包含有—頭框2()，—連接部％ 該頭框20延伸而出，以及一握柄（圖未示）設於該連 30之末端3卜於本實施例中該球拍1〇係以羽球拍為例， 該連接部30係一直桿。 本創作之特徵在於該頭框20具有一内周面22、一外 面25，二環周面26位於該内周面22及該外周面25 之間’該班二環周φ 26鄰近該内周面22處具有多數凹陷27, 且該二環周面2 6之凹陷2 7係兩兩相對，使該内周面2 2之 20 M322834 邊緣形成麟狀，該内周面22本身係—平滑之環面，缺由 頭框2〇中心往外看，如第二圖所示，該内周面22呈有多 數頸部23形成於二相對之凹陷27之間，各該頸部2 則紐寬之頭部24,使該内周面22呈現寬窄交錯排列類^ 胡盧之雜’由弟三、四圖可更明顯看出該頭部2核 部23位置之頭框2〇剖面形狀，該馳2() 數穿線 28位於各該頸部23之間。 由於該二環周面26與該内周面22之_有該等凹陷 27’ -方面使球拍揮拍時頭框2〇之迎風面積減小，可 10降低該球拍10之空氣阻力，增進球拍之操控性，另一方面 使該頭框20之周壁29形成曲折狀，可增加該頭框之結 構強度，延長球拍10之使用壽命。 f於本創作之精神，可制至類似產品如網球拍、壁 球拍等，框之結構亦有多種變化方式，如第五圖所示， 15係ί創作第二較佳實施例所提供之球拍40，其中，頭框41 之穿線孔42係設於内周面44之頸部46;又如第六圖所示， 係本創作第三較佳實施例所提供之球拍50，其中，二環周 面52之凹陷54係互相錯開，使内周面允呈現連續$形彎 曲狀，另如第七圖所示，係本創作第四較佳實施例所提供 2〇之求拍60，其中，二環周面a之凹陷64僅設於局部頭框 66且4份區段s僅單邊環周面設有該凹陷料；另外， 第八圖所示係本創作第五較佳實施例所提供之網球拍70， 其頭框72之部分區段S中，二環周面74設有兩兩相對之 凹陷76;第九圖所示則為本創作第六較佳實施例所提供之 M322834 壁球拍80，於頭框82之部分區段S中，二環周面84亦設 有兩兩相對之凹陷86 ;舉凡此等易於思及之結構變化，均 應為本創作申請專利範圍所涵蓋。 M322834 【圖式簡單說明】 第一圖係本創作第一較佳實施例之立體圖； ^ 第二圖係本創作第一較佳實施例之局部侧視圖； 第三圖係第二圖沿3-3方向之剖視圖； 5 第四圖係第二圖沿4-4方向之剖視圖； 第五圖係本創作第二較佳實施例之局部侧視圖； ‘ 第六圖係本創作第三較佳實施例之局部側視圖； • 第七圖係本創作第四較佳實施例之局部立體圖； 第八圖係本創作第五較佳實施例之立體圖； 第九圖係本創作第六較佳實施例之立體圖。 10 M322834 【主要元件符號說明】 10球拍 20頭框 ' 30連接部 • 40球拍 ίο 50球拍 60球拍 70網球拍 . 15 ^ 80壁球拍 22内周面 23頸部 24頭部 25外周面 26環周面 27凹陷 28線孔 29周壁 31末端 41頭框 42穿線孔 44内周面 46頸部 52環周面 54凹陷 56内周面 62環周面 64凹陷 66頭框 S區段 72頭框 S區段 74環周面 76凹陷 82頭框 S區段 84環周面 86凹陷 9M322834 VIII. New description: [New technical field] This creation is related to sports equipment, especially a high-strength and low-resistance racket. 5 [Prior Art] A racquet such as a badminton racket, a tennis racket or a squash racket includes a head frame from which the connecting portion extends, and a grip is provided at the free end of the connecting portion, wherein the head The cross section of the frame is slightly rectangular and has a small wind resistance. How to reduce the air resistance during the swing has become the focus of research and development in the industry; in addition, the head frame not only has to withstand the tension of the cable, but also the most vulnerable to external forces. Make the head frame the part that is most prone to structural damage. Therefore, how to strengthen the knot of the head frame is also a problem that the #界亟 wants to solve. [New Content] 15 ^Creation - The purpose is to provide a kind of racket with high structural strength and low air resistance. Another part of the creation is to provide a ball with high strength and low wind resistance with excellent handling. 20 shots - again - the purpose is to provide a ball with high strength and low wind resistance for a long service life. In the t-reading, the high-strength and low-resistance ball provided by Benshun is provided with the head frame extending from the head frame, and a handle is provided at the free end of the connecting portion. One street, a, the side frame has an inner circumferential surface, "' and the circumferential surface of the second ring is located between the inner circumferential surface and the outer circumferential surface, and the surface of the M322834 has a plurality of depressions, so that the inner circumferential surface The circumferential surface of the equal ring is wavy adjacent to the inner peripheral edge. [Embodiment] The following six preferred implementations are described in order to better understand the characteristics of the creation and the following descriptions are shown in the following, in which: the figure is the third-dimensional view of the creation of the creation; the second picture is the creation of the first A partial side view of the preferred embodiment; a third view is a cross-sectional view taken along line 3_3 of the second figure; a fourth view is a cross-sectional view of the second figure taken along line 4_4; and the fifth figure is a partial side of the second preferred embodiment of the present invention Figure 6 is a partial side view of the third preferred embodiment of the present invention, and a seventh partial view of the fourth preferred embodiment of the present invention is a perspective view of the fifth preferred embodiment of the present invention; 10 15 A nine-dimensional view is a perspective view of a sixth preferred embodiment of the present invention. Referring to FIG. 1 , the high-strength and low-resistance racket 1G provided by the first preferred embodiment of the present invention includes a head frame 2 ( ), a connection portion %, the head frame 20 extends out, and a grip. A handle (not shown) is provided at the end of the link 30. In the present embodiment, the racket 1 is a badminton racket. The connecting portion 30 is a straight rod. The present invention is characterized in that the head frame 20 has an inner circumferential surface 22 and an outer surface 25, and the two-ring circumferential surface 26 is located between the inner circumferential surface 22 and the outer circumferential surface 25. The second ring circumference φ 26 is adjacent to the inner circumference. The surface 22 has a plurality of depressions 27, and the depressions 27 of the circumferential surface of the two rings are opposite to each other, so that the edges of the 20 M322834 of the inner circumferential surface 22 are formed into a rib shape, and the inner circumferential surface 22 itself is smoothed. The torus is missing from the center of the head frame 2〇. As shown in the second figure, the inner peripheral surface 22 has a plurality of neck portions 23 formed between the two opposite recesses 27, and each of the neck portions 2 is widened. The head portion 24 is such that the inner peripheral surface 22 exhibits a wide and narrow staggered arrangement type ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The 2() number threading 28 is located between each of the necks 23. Since the circumferential surface 26 of the second ring circumferential surface 26 and the inner circumferential surface 22 have such a recess 27' - the windward area of the head frame 2 is reduced when the racket is swung, the air resistance of the racket 10 can be reduced 10, and the racket can be improved. The maneuverability, on the other hand, the peripheral wall 29 of the head frame 20 is formed in a meander shape, which can increase the structural strength of the head frame and prolong the service life of the racket 10. f In the spirit of this creation, it can be made into similar products such as tennis rackets, squash rackets, etc. The structure of the frame is also varied. As shown in the fifth figure, the 15 series is used to create the racket provided by the second preferred embodiment. 40, wherein the threading hole 42 of the head frame 41 is disposed on the neck portion 46 of the inner circumferential surface 44; as shown in the sixth figure, the racket 50 provided in the third preferred embodiment of the present invention, wherein the second ring The depressions 54 of the circumferential surface 52 are offset from each other, so that the inner circumferential surface is allowed to have a continuous curved shape, and as shown in the seventh embodiment, the second preferred embodiment of the present invention provides a tempo 60, wherein The recess 64 of the circumferential surface a of the second ring is only disposed on the partial head frame 66 and the 4 segments s are provided only on the circumferential surface of the single side ring; in addition, the eighth embodiment shows the fifth preferred embodiment of the present invention. The tennis racket 70 is provided. In the partial section S of the head frame 72, the two ring circumferential faces 74 are provided with two opposite recesses 76; the ninth figure shows the M322834 provided by the sixth preferred embodiment of the present invention. The squash racket 80, in the partial section S of the head frame 82, the two-ring peripheral surface 84 is also provided with two opposite recesses 86; such a structural change that is easy to think about Are present should be covered by the scope of patent creation. M322834 [Simple description of the drawings] The first drawing is a perspective view of the first preferred embodiment of the present invention; ^ The second drawing is a partial side view of the first preferred embodiment of the present creation; 3 is a cross-sectional view of the second embodiment; 5 is a cross-sectional view of the second embodiment along the 4-4 direction; the fifth drawing is a partial side view of the second preferred embodiment of the present invention; 'The sixth figure is the third preferred embodiment of the present creation 7 is a partial perspective view of a fourth preferred embodiment of the present invention; the eighth diagram is a perspective view of a fifth preferred embodiment of the present creation; and the ninth diagram is a sixth preferred embodiment of the present creation Stereo view. 10 M322834 [Key component symbol description] 10 racket 20 head frame ' 30 connection part • 40 racket ίο 50 racket 60 racket 70 tennis racket. 15 ^ 80 squash racket 22 inner circumference 23 neck 24 head 25 outer circumference 26 ring circumference Surface 27 recess 28 line hole 29 peripheral wall 31 end 41 head frame 42 threading hole 44 inner peripheral surface 46 neck 52 ring circumferential surface 54 recess 56 inner peripheral surface 62 circumferential surface 64 recess 66 head frame S section 72 head frame S area Segment 74 circumferential surface 76 recess 82 head frame S section 84 circumferential surface 86 recessed 9